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Tantalum Prospect

Occurrence in Larimer county in Colorado, United States with commodities Tantalum, Beryllium, Mica
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10087861
MRDS ID D010339
Record type Site
Current site name Tantalum Prospect

Geographic coordinates

Geographic coordinates: -105.38587, 40.54581 (WGS84)
Elevation 2469
Location accuracy 500(meters)
Relative position 13.3 MILES N 28 E FROM ESTES PARK

Site location context

Political divisions (FIPS codes)

Larimer(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Crystal Mountain(quadrangle 1:24,000 scale)

Fort Collins(quadrangle 1:100,000 scale)

Greeley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Thompson(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Arapaho and Roosevelt National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Larimer

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 007N 071W 30 NE Colorado

Comments on the location information

  • PROBABLY NORTH OF SHEEP CREEK, 2.5 MILES ENE OF CRYSTAL MOUNTAIN. ; INFO FROM LAND.ST :(1980)

Commodities

Commodity Importance
Tantalum Critical Primary
Beryllium Critical Primary
Mica Primary

Materials information

Materials Type of material
Beryl Ore
Muscovite Ore
Tantalite Ore
Microcline Gangue

Analytical data

Result USGS ANALYSIS YIELDED 76 % TA205 AND 10 % NB205

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Tonalite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite;Tonalite (Quartz Diorite)
    Rock description Pegmatite;Tonalite (Quartz Diorite)
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Metasedimentary Rocks-Quartz-Biotite Schist;Pegmatite
    Rock description Metasedimentary Rocks-Quartz-Biotite Schist;Pegmatite

Nearby scientific data

(1) -105.38587, 40.54581
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift
Type of structure Local
Structure description Thompson Canyon Fault, Mt Olympus Batholith, Ne-Trending Folds

Ore body information

  • General form TABULAR
    Length 50.29M
    Width 6.71M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Crystal Mountain (Storm Mountain) Pegmatite District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner United Beryllium Ores And Metals Corp.
    Home office Denver, Co.
    First year 1942

Comments on the workings information

  • 6-FT-DEEP SHAFT

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit UNZONED PEGMATITE TRENDS N 71 E, AND IS COMPOSED OF QUARTZ, ALBITE, AND MUSCOVITE, WITH ACCESSORY MICROCLINE, BERYL, AND TANTALITE. AVE. GRAIN SIZE OF 2 INCHES. BERYL AND EUHEDRAL TANTALITE OCCUR WITH FINE-GRAINED MUSCOVITE AGGREGATES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-83 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.